As Agile practitioners, a great deal of our time is focused on having targeted, directed impact. But sometimes we miss opportunities to repurpose our efforts into syngergistic, many-pronged effects. Not multi-tasking — multi-EFFECTing, from one piece of effort. This talk will explore this topic, both in theory and in practice. We will examine a particular client case-study, where two disparate 6-person developer teams, with minimal pairing and TDD experience, were developed into highly-productive “gelled” teams, through “Group Pair Programming” — 6 individuals, 1 workstation.